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Kernel: Add lock debugging to ProtectedValue / RefCountedContended

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Enable the LOCK_DEBUG functionality for these new APIs, as it looks
like we want to move the whole system to use this in the not so distant
future. :^)
This commit is contained in:
Brian Gianforcaro 2021-08-07 04:28:59 -07:00 committed by Andreas Kling
parent bea74f4b77
commit bffcb3e92a
3 changed files with 28 additions and 22 deletions
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4
Kernel/Locking/ContendedResource.h
View file

@ -16,9 +16,9 @@ class LockedResource {
AK_MAKE_NONCOPYABLE(LockedResource);
public:
LockedResource(T* value, Mutex& mutex)
LockedResource(T* value, Mutex& mutex, LockLocation const& location)
: m_value(value)
, m_mutex_locker(mutex, LockingMode)
, m_mutex_locker(mutex, LockingMode, location)
{
}

23
Kernel/Locking/ProtectedValue.h
View file

@ -7,6 +7,7 @@
#pragma once
#include <Kernel/Locking/ContendedResource.h>
#include <Kernel/Locking/LockLocation.h>
namespace Kernel {
@ -20,8 +21,8 @@ protected:
using LockedShared = LockedResource<T const, LockMode::Shared>;
using LockedExclusive = LockedResource<T, LockMode::Exclusive>;
LockedShared lock_shared() const { return LockedShared(this, this->ContendedResource::m_mutex); }
LockedExclusive lock_exclusive() { return LockedExclusive(this, this->ContendedResource::m_mutex); }
LockedShared lock_shared(LockLocation const& location) const { return LockedShared(this, this->ContendedResource::m_mutex, location); }
LockedExclusive lock_exclusive(LockLocation const& location) { return LockedExclusive(this, this->ContendedResource::m_mutex, location); }
public:
using T::T;
@ -29,35 +30,37 @@ public:
ProtectedValue() = default;
template<typename Callback>
decltype(auto) with_shared(Callback callback) const
decltype(auto) with_shared(Callback callback, LockLocation const& location = LockLocation::current()) const
{
auto lock = lock_shared();
auto lock = lock_shared(location);
return callback(*lock);
}
template<typename Callback>
decltype(auto) with_exclusive(Callback callback)
decltype(auto) with_exclusive(Callback callback, LockLocation const& location = LockLocation::current())
{
auto lock = lock_exclusive();
auto lock = lock_exclusive(location);
return callback(*lock);
}
template<typename Callback>
void for_each_shared(Callback callback) const
void for_each_shared(Callback callback, LockLocation const& location = LockLocation::current()) const
{
with_shared([&](const auto& value) {
for (auto& item : value)
callback(item);
});
},
location);
}
template<typename Callback>
void for_each_exclusive(Callback callback)
void for_each_exclusive(Callback callback, LockLocation const& location = LockLocation::current())
{
with_exclusive([&](auto& value) {
for (auto& item : value)
callback(item);
});
},
location);
}
};

23
Kernel/Locking/RefCountedContended.h
View file

@ -8,6 +8,7 @@
#include <AK/RefCounted.h>
#include <Kernel/Locking/ContendedResource.h>
#include <Kernel/Locking/LockLocation.h>
#include <Kernel/Locking/Mutex.h>
namespace Kernel {
@ -22,8 +23,8 @@ protected:
using LockedShared = LockedResource<T const, LockMode::Shared>;
using LockedExclusive = LockedResource<T, LockMode::Exclusive>;
LockedShared lock_shared() const { return LockedShared(static_cast<T const*>(this), this->ContendedResource::m_mutex); }
LockedExclusive lock_exclusive() { return LockedExclusive(static_cast<T*>(this), this->ContendedResource::m_mutex); }
LockedShared lock_shared(LockLocation const& location) const { return LockedShared(static_cast<T const*>(this), this->ContendedResource::m_mutex, location); }
LockedExclusive lock_exclusive(LockLocation const& location) { return LockedExclusive(static_cast<T*>(this), this->ContendedResource::m_mutex, location); }
public:
RefCountedContended() = default;
@ -42,35 +43,37 @@ public:
}
template<typename Callback>
decltype(auto) with_shared(Callback callback) const
decltype(auto) with_shared(Callback callback, LockLocation const& location = LockLocation::current()) const
{
auto lock = lock_shared();
auto lock = lock_shared(location);
return callback(*lock);
}
template<typename Callback>
decltype(auto) with_exclusive(Callback callback)
decltype(auto) with_exclusive(Callback callback, LockLocation const& location = LockLocation::current())
{
auto lock = lock_exclusive();
auto lock = lock_exclusive(location);
return callback(*lock);
}
template<typename Callback>
void for_each_shared(Callback callback) const
void for_each_shared(Callback callback, LockLocation const& location = LockLocation::current()) const
{
with_shared([&](const auto& value) {
for (auto& item : value)
callback(item);
});
},
location);
}
template<typename Callback>
void for_each_exclusive(Callback callback)
void for_each_exclusive(Callback callback, LockLocation const& location = LockLocation::current())
{
with_exclusive([&](auto& value) {
for (auto& item : value)
callback(item);
});
},
location);
}
};